Add cross-references for the functions/structs and add
the markup tags to improve its display.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Sphinx produce a 1:1 mapping between a rst file and an html file.
So, we need to split the kernel-doc tags on multiple documents.
A side effect is that we're now having a better name for each
section of the kAPI documentation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>